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Brand
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Synchrophase | ||||
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Year: 1920 | Category: Power supply/conditioner or battery or charger |
Wave bands | - without |
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Details | |
Power type and voltage | Is a battery or storage battery / 22 Volt |
Loudspeaker | - - No sound reproduction output. |
Power out | |
from Radiomuseum.org | Model: ROAA Vacuum Tube Storage Battery - Grebe, A.H. & Co.; Richmond |
Material | Various materials |
Shape | Tablemodel, with any shape - general. |
Dimensions (WHD) | 6.5 x 3.5 x 3.5 inch / 165 x 89 x 89 mm |
Notes |
Vacuum Tube Storage Battery Type ROAA with Fluid Electrolyte - B Battery for plate operation. |
Net weight (2.2 lb = 1 kg) | 5 lb (5 lb 0 oz) / 2.270 kg |
Price in first year of sale | 19.00 USD |
Literature/Schematics (2) | February, 1920 A. H. Grebe & Co. Bulletin A-410, A-411 |
Model page created by Alan Larsen. See "Data change" for further contributors.
All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)
Here you find 186 models, 115 with images and 59 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.